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Near-infrared intersubband transitions in delta-doped InAs∕AlSb multi-quantum wells
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10.1063/1.1833559
/content/aip/journal/apl/85/23/10.1063/1.1833559
http://aip.metastore.ingenta.com/content/aip/journal/apl/85/23/10.1063/1.1833559

Figures

Image of FIG. 1.
FIG. 1.

Intersubband absorption spectra of InAs∕AlSb MQWs at 79 K for samples A, B, C, and D. A large line width broadening is observed for sample D.

Image of FIG. 2.
FIG. 2.

Measured and simulated XRD spectra for two types of InAs (1.8 nm)∕AlSb (5.4 nm) MQWs. The top two curves are of MQW with InSb bonds at each interface (sample E) and the lower for MQW with InSb top and AlAs bottom interfaces (sample F).

Image of FIG. 3.
FIG. 3.

Integrated ISBT intensity for samples A–D. A drastic reduction in the intensity ocurrs for between 2 and 3 nm.

Image of FIG. 4.
FIG. 4.

Intersubband absorption spectrum for 60 periods of MQW with (sample I) together with those for samples A, B, and C.

Tables

Generic image for table
Table I.

Sample structure, electron density, and mobility at 77 K in MQWs.

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/content/aip/journal/apl/85/23/10.1063/1.1833559
2004-12-08
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Near-infrared intersubband transitions in delta-doped InAs∕AlSb multi-quantum wells
http://aip.metastore.ingenta.com/content/aip/journal/apl/85/23/10.1063/1.1833559
10.1063/1.1833559
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